Horrific or bloodthirsty (4)
I believe the answer is:
gory
I believe this is a double definition.
'horrific' is the first definition.
(I've seen this before)
'bloodthirsty' is the second definition.
(thesaurus)
(Other definitions for gory that I've seen before include "Grisly" , "Covered in blood" , "Violent; bloody" , "Involving much blood" , "Maybe gruesome" .)